Equipment unit · VIN-decoded · NHTSA vPIC

2021 Freightliner SD122

3AKJGNDV0MDMN6377 · Truck-Tractor · TRUCK
Carriers run under3
20 mo
Inspections5
all-time
OOS inspections2
of 5
First seenSep 1, 2023
TX
Last seenMay 4, 2025
IN
Inspected under 3 different carriers in 20 months
A unit that bounces between many operators can indicate slip-seating, heavy sub-haul, or double-brokering. Review the carrier timeline below for load integrity — context for human judgment, not a verdict.
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
3AKJGNDV0MDMN6377
Make
Freightliner
Model
SD122
Model year
2021
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 30, 2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
Decode evidence & sources

Deterministic structure

These fields come directly from VIN positions and the published checksum calculation, with zero store IO.

World manufacturer identifier
3AK

Deterministic · VIN positions 1–3.

Vehicle descriptor section
JGNDV

Deterministic · VIN positions 4–8.

Check digit
0 · valid

Deterministic · position 9; calculated value 0.

Model year candidates
1991 or 2021

Position 10 repeats every 30 years; both candidates are retained and neither is silently selected.

North American serial sequence
MN6377

Deterministic · positions 12–17 for a North American WMI.

Sourced platform inference

The prefix store publishes only at support ≥ 3 and purity ≥ 90%. Prefix confidence is shown beside every established platform claim.

Not established

No supported platform claim is established for this prefix

The resolver answered successfully but returned no row above the evidence floor. This does not mean the vehicle has no platform or that no data exists; it means this store cannot make the claim.

Federal observation (NHTSA vPIC)

What the federal corpus observed directly for this exact VIN — independent of, and sometimes more specific than, the prefix-level inference above.

Observed model year
2021

Observed directly for this VIN via NHTSA vPIC.

Observed make
FREIGHTLINER

Observed directly for this VIN via NHTSA vPIC.

Observed model
SD122

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Truck-Tractor

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRUCK

Observed directly for this VIN via NHTSA vPIC.

GVWR
Class 8: 33,001 lb and above (14,969 kg and above)

Observed directly for this VIN via NHTSA vPIC.

Not established

  • platform make
  • platform model
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Sep 1, 2023 – May 4, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
May 4, 2025INIII · Driver-only10OOSMARTIN TRUCKING 33 LLC 1672937NO PLATE/MO
Mar 29, 2024TXIII · Driver-only0DOGGETT FREIGHTLINER OF SOUTH TEXAS LLC 34972388B2800C/TX
Sep 18, 2023TXII · Walk-around1OOSAREPET EXPRESS LLC 2367351R508688/TX
Sep 8, 2023TXII · Walk-around0AREPET EXPRESS LLC 2367351R508688/TX
Sep 1, 2023TXII · Walk-around0AREPET EXPRESS LLC 2367351R508688/TX
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MARTIN TRUCKING 33 LLC1672937May 4, 2025May 4, 20251MO
DOGGETT FREIGHTLINER OF SOUTH TEXAS LLC3497238Mar 29, 2024Mar 29, 20241TX
AREPET EXPRESS LLC2367351Sep 1, 2023Sep 18, 20233TX
Names are left-joined from the FMCSA census; a DOT with no census match falls back to its number.
04

Plate & unit-number history

The same truck under different plate registrations across carriers

PlateState / prov.Unit no.CarrierDate rangeInsp.
NO PLATEMOMARTIN TRUCKING 33 LLCMay 4, 2025May 4, 20251
8B2800CTXDOGGETT FREIGHTLINER OF SOUTH TEXAS LLCMar 29, 2024Mar 29, 20241
R508688TXAREPET EXPRESS LLCSep 1, 2023Sep 18, 20233
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 30, 2026